The Ripple Interactive LED Coffee Table($1500-$2100) uses 480 super-bright white LEDs and 24 active and passive near-infrared optical sensors that provides illuminating feedback when the objects are placed near the table top. It looks really cool! It also comes with an on / off switch hidden on the underside of the table, and a cord that plugs into any standard 110v household outlet. By Because We Can and Evil Mad Science.